!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!8

[tex]\huge \bf༆ Answer ༄[/tex]
The Slope of the line is the rate of change shown in the graph.
Taking two points on the line (1 , 6) and (2 , 12)
Slope (m) is equal to : -
Hence, Rate of change is $6 / hour
[tex]꧁ \: \large \frak{Eternal \: Being } \: ꧂[/tex]